How Does Owens Corning's (NYSE:OC) P/E Compare To Its Industry, After The Share Price Drop?

To the annoyance of some shareholders, Owens Corning (NYSE:OC) shares are down a considerable 37% in the last month. Even longer term holders have taken a real hit with the stock declining 28% in the last year.

Assuming nothing else has changed, a lower share price makes a stock more attractive to potential buyers. While the market sentiment towards a stock is very changeable, in the long run, the share price will tend to move in the same direction as earnings per share. The implication here is that long term investors have an opportunity when expectations of a company are too low. Perhaps the simplest way to get a read on investors' expectations of a business is to look at its Price to Earnings Ratio (PE Ratio). Investors have optimistic expectations of companies with higher P/E ratios, compared to companies with lower P/E ratios.

View our latest analysis for Owens Corning

Does Owens Corning Have A Relatively High Or Low P/E For Its Industry?

We can tell from its P/E ratio of 9.90 that sentiment around Owens Corning isn't particularly high. If you look at the image below, you can see Owens Corning has a lower P/E than the average (14.7) in the building industry classification.

Its relatively low P/E ratio indicates that Owens Corning shareholders think it will struggle to do as well as other companies in its industry classification. While current expectations are low, the stock could be undervalued if the situation is better than the market assumes. It is arguably worth checking if insiders are buying shares, because that might imply they believe the stock is undervalued.

How Growth Rates Impact P/E Ratios

P/E ratios primarily reflect market expectations around earnings growth rates. When earnings grow, the 'E' increases, over time. Therefore, even if you pay a high multiple of earnings now, that multiple will become lower in the future. And as that P/E ratio drops, the company will look cheap, unless its share price increases.

Owens Corning shrunk earnings per share by 25% over the last year. But it has grown its earnings per share by 14% per year over the last five years.

A Limitation: P/E Ratios Ignore Debt and Cash In The Bank

Don't forget that the P/E ratio considers market capitalization. In other words, it does not consider any debt or cash that the company may have on the balance sheet. Theoretically, a business can improve its earnings (and produce a lower P/E in the future) by investing in growth. That means taking on debt (or spending its cash).

Spending on growth might be good or bad a few years later, but the point is that the P/E ratio does not account for the option (or lack thereof).

How Does Owens Corning's Debt Impact Its P/E Ratio?

Owens Corning has net debt worth 71% of its market capitalization. This is enough debt that you'd have to make some adjustments before using the P/E ratio to compare it to a company with net cash.

The Verdict On Owens Corning's P/E Ratio

Owens Corning trades on a P/E ratio of 9.9, which is below the US market average of 12.5. The P/E reflects market pessimism that probably arises from the lack of recent EPS growth, paired with significant leverage. Given Owens Corning's P/E ratio has declined from 15.8 to 9.9 in the last month, we know for sure that the market is more worried about the business today, than it was back then. For those who prefer to invest with the flow of momentum, that might be a bad sign, but for deep value investors this stock might justify some research.

When the market is wrong about a stock, it gives savvy investors an opportunity. As value investor Benjamin Graham famously said, 'In the short run, the market is a voting machine but in the long run, it is a weighing machine. So this free visual report on analyst forecasts could hold the key to an excellent investment decision.

But note: Owens Corning may not be the best stock to buy. So take a peek at this free list of interesting companies with strong recent earnings growth (and a P/E ratio below 20).

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Thank you for reading.